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A GaN-based DC/DC converter for e-vehicles applications

Sprunck, Sebastian
De Oliveira, Eduardo Facanha
Zacharias, Peter
Pfeiffer, Jonas

This paper presents a 4 kW GaN-based galvanically isolated bidirectional DC/DC converter suitable for on-board auxiliary power supply systems, interconnecting the HV battery with the LV power system. To enable the trend towards higher levels of electrification, a second LV level of 48 V is introduced to supply the high-power consumers, relieving the 12 V grid on the one hand and/or avoiding using additional costly isolated converters connected to the HV batteries on the other. The built converter prototypes aim to demonstrate higher efficiency, compactness and lower filter requirements of the proposed circuit.

Sponsor
The authors acknowledge the financial support by the German Federal Ministry of Education and Research (BMBF) in the framework of project HELENE number 16EMO0234
Collections
@inproceedings{doi:10.17170/kobra-202108314670,
  author    ={Sprunck, Sebastian and De Oliveira, Eduardo Facanha and Zacharias, Peter and Pfeiffer, Jonas},
  keywords ={620 and Elektrofahrzeug and Kraftfahrzeugbatterie and Gleichstromantrieb and Konverter },
  title    ={A GaN-based DC/DC converter for e-vehicles applications},
  copyright  ={https://rightsstatements.org/page/InC/1.0/},
  language ={en},
  year   ={2020}
}